Get rid of the oil in a skillet, rub it lightly necessary kitchen roll. Sprinkle with olive oil, Warm and put burgers back into the pan. For each pancake put a good pinch of grated cheese, Pour each spoonful of sauce and cover with. Leave it to rest 3 minuty, make the cheese melted. Then add the remaining sauce, the meatballs, Cover and slow fire 3 minutes, then heat through.